Reverse sensor over ri de 2004 grizzly 660 atv

SOURCE: Reverse override button doesn't seem to change anything

The override button on your Yamaha isn't supposed to override reverse. It will only disengage the rev limiter while moving forward when you have the "Diff Lock" engaged. When this happens, you will see your speedometer change to zeros. If you want to override your reverse, you will need to rewire a few things. I found the info I needed at "grizzhopper.com" to rewire mine.